712163261 has 2 divisors, whose sum is σ = 712163262. Its totient is φ = 712163260.

The previous prime is 712163251. The next prime is 712163267. The reversal of 712163261 is 162361217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 600544036 + 111619225 = 24506^2 + 10565^2 .

It is a cyclic number.

It is not a de Polignac number, because 712163261 - 2¹⁸ = 711901117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712163267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356081630 + 356081631.

It is an arithmetic number, because the mean of its divisors is an integer number (356081631).

Almost surely, 2^712163261 is an apocalyptic number.

It is an amenable number.

712163261 is a deficient number, since it is larger than the sum of its proper divisors (1).

712163261 is an equidigital number, since it uses as much as digits as its factorization.

712163261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 712163261 is about 26686.3871852299. The cubic root of 712163261 is about 893.0172647202.

The spelling of 712163261 in words is "seven hundred twelve million, one hundred sixty-three thousand, two hundred sixty-one".